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2 changed files with 112 additions and 90 deletions

26
bin/f3fulltest Executable file
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@ -0,0 +1,26 @@
#!/usr/bin/env bash
# This script assumes that the specified block device can be completely wiped
# exit when any command fails
set -e
disk=$1
mp=$(mktemp -d)
# f3probe the block device for counterfeit flash memory
f3probe --destructive --time-ops $disk
# f3write and f3read need a mounted fs
mkfs.ext4 -D -F -F $disk
mount $disk $mp
f3write $mp
sync
f3read $mp
umount $mp

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@ -10,67 +10,54 @@ bootctl is-installed &> /dev/null && sdboot=1
[[ "$(bootctl reboot-to-firmware)" == "supported" ]] && fwboot=1
picksdboot() {
# Usage: picksdboot <title> <prompt>
local entry PS3 COLUMNS
selectentry() {
# Usage: selectentry <title> <prompt>
local sel PS3 COLUMNS
PS3="$2 "
COLUMNS=1
# Print title to stderr
printf "\n%s\n\n" "$1" >&2
# Put all systemd-boot loder entry confs into an array
mapfile -t sdbootlist < <(systemctl --boot-loader-entry=help)
# Populate entry list array
# If we're in EFI mode
if [[ -v efimode ]]; then
# This one is fun
# mapfile splits stdin on \n to an array
# The sed regex looks for an asterisk in the 8th position (0 indexed),
# which marks an efi boot entry as "active", so those are the only ones
# we care to add to the list.
# It *seems* like one could put mapfile at the end of the pipeline, but
# each command gets run in a subshell, so the array is lost. (ref: SC2031)
mapfile -t entrylist < <(efibootmgr | sed -n '/.\{8\}\*/p')
# Only add the firmware interface to the list if booting to it is supported
[[ -v fwboot ]] && sdbootlist+=("$biosname")
# Add firmware interface entry if supported
[[ -v fwboot ]] && entrylist+=("$biosname")
select entry in "${sdbootlist[@]}"; do
# If we're in systemd-boot mode
elif [[ ! -v efimode ]]; then
# Put all systemd-boot loder entry confs into an array
mapfile -t entrylist < <(systemctl --boot-loader-entry=help)
# Only add the firmware interface to the list if booting to it is supported
[[ -v fwboot ]] && entrylist+=("$biosname")
fi
# Get user selection
select sel in "${entrylist[@]}"; do
break
done
printf "%s" "$entry"
}
pickefi() {
# Usage: pickefi <title> <prompt>
local bootnext PS3 COLUMNS
PS3="$2 "
COLUMNS=1
# Print title to stderr
printf "\n%s\n\n" "$1" >&2
# This one is fun
# mapfile splits stdin on \n to an array
# The sed regex looks for an asterisk in the 8th position (0 indexed),
# which marks an efi boot entry as "active", so those are the only ones
# we care to add to the list.
# It *seems* like one could put mapfile at the end of the pipeline, but
# each command gets run in a subshell, so the array is lost. (ref: SC2031)
mapfile -t efientries < <(efibootmgr | sed -n '/.\{8\}\*/p')
# Rebooting to the firmware interface only works with systemd-boot, so only add
# it to the EFI mode list if systemd-boot is available and it's supported
[[ -v sdboot && -v fwboot ]] && efientries+=("$biosname")
select efiselection in "${efientries[@]}"; do
# If they chose the firmware interface
if [[ "$efiselection" == "$biosname" ]]; then
break
else
# Take only character 4-8 of the entry, which is the BOOTNUM
bootnext="${efiselection:4:4}"
break
fi
done
printf "%s" "$bootnext"
# If in efi mode and the user did not select the firmware config menu item,
# then drop everything except for the BOOTNUM (character 4-8)
[[ -v efimode && "$sel" != "$biosname" ]] && sel="${sel:4:4}"
# Print result to stdout
printf "%s" "$sel"
}
# Parse command line options
while getopts ":en" opt; do
case $opt in
e)
@ -86,66 +73,75 @@ while getopts ":en" opt; do
esac
done
# If -e wasn't set, and systemd-boot isn't installed, fail over to efimode anyways
if [[ ! -v efimode && ! -v sdboot ]]; then
echo "W: systemd-boot not installed. Choosing EFI boot entries instead..."
efimode=1
fi
# If we're in EFI mode
if [[ -v efimode ]]; then
title="Pick EFI boot entry"
prompt="Entry"
if [[ -v noreboot ]]; then
prompt="$prompt for next boot:"
elif [[ ! -v noreboot ]]; then
prompt="$prompt to boot IMMEDIATELY:"
else
echo "E: idk how you got here..."
exit 1
fi
# Prompt for the user's choice
choice="$(pickefi "$title" "$prompt")"
# A special case to boot into firmware interface
if [[ "$choice" == "$biosname" ]]; then
sudo bootctl reboot-to-firmware true
elif [[ "$choice" != "$biosname" ]]; then
sudo efibootmgr -q --bootnext "$choice"
fi
# If we're in systemd-boot mode
elif [[ ! -v efimode ]]; then
title="Pick systemd-boot entry config"
prompt="Entry"
if [[ -v noreboot ]]; then
prompt="$prompt for next boot:"
elif [[ ! -v noreboot ]]; then
prompt="$prompt to boot IMMEDIATELY:"
else
echo "E: idk how you got here either..."
exit 1
fi
# Prompt for the user's choice
choice="$(picksdboot "$title" "$prompt")"
# A special case to boot into firmware interface
if [[ "$choice" == "$biosname" ]]; then
sudo bootctl reboot-to-firmware true
elif [[ "$choice" != "$biosname" ]]; then
sudo bootctl set-oneshot "$choice"
# Add an option to speed past the boot menu, since we've already
# chosen the desired entry.
rebootopts+=("--boot-loader-menu=1")
fi
else
echo "E: you DEFINITELY don't belong here..."
echo "E: idk how you got here..."
exit 1
fi
# Specialize prompt for reboot mode
if [[ -v noreboot ]]; then
prompt="Entry for next boot:"
elif [[ ! -v noreboot ]]; then
prompt="Entry to boot IMMEDIATELY:"
else
echo "E: idk how you got here either..."
exit 1
fi
# Prompt for the user's choice
choice="$(selectentry "$title" "$prompt")"
# A special case to boot into firmware interface
if [[ "$choice" == "$biosname" ]]; then
sudo bootctl reboot-to-firmware true
# For all other entry selections
elif [[ "$choice" != "$biosname" ]]; then
# If we're in EFI mode
if [[ -v efimode ]]; then
# Set bootnext in nvram
sudo efibootmgr -q --bootnext "$choice"
# If we're in systemd-boot mode
elif [[ ! -v efimode ]]; then
# Set default boot entry only for next boot
sudo bootctl set-oneshot "$choice"
# Add an option to speed past the boot menu, since we've already
# chosen the desired entry.
rebootopts+=("--boot-loader-menu=1")
else
echo "E: you DEFINITELY don't belong here..."
exit 1
fi
else
echo "E: must you insist on breaking my things?"
exit 1
fi
# Reboot if necessary
[[ ! -v noreboot ]] && sudo systemctl reboot "${rebootopts[@]}"